Best Quality GB0-372-ENU Exam Questions H3C Test To Gain Brilliante Result!
Preparations of GB0-372-ENU Exam 2024 H3CSE-Routing & Switching Unlimited 435 Questions
NEW QUESTION # 156
Which of the following statements about inter-VLAN communication on switches is correct?
(Multiple choice)
- A. After the Layer 2 switch divides the VLANs, hosts in different VLANs can communicate with each other through the router. The method is that the router has a physical interface and a physical connection to each VLAN.
- B. Hosts in VLANs divided by switches can communicate, but hosts between VLANs cannot communicate with each other.
- C. After the three-layer switch divides the VLAN, hosts in different VLANs can communicate. The method is to create a virtual three-layer VLAN interface for each VLAN on the three-layer switch. The VLAN interface needs to be configured with the corresponding IP address.
- D. After the Layer 2 switch divides the VLANs, hosts in different VLANs can communicate with each other through a router. The method is to connect the router to the switch's Trunk port with one interface, and the router must support the 802.1Q protocol.
Answer: A,C,D
NEW QUESTION # 157
Regarding the comparison between unicast, multicast and broadcast, which of the following is correct? (Multiple choice)
- A. Compared with broadcast, multicast can reduce the burden on the source
- B. Compared with unicast, multicast can reduce link load
- C. Compared with broadcast, multicast can improve link utilization
- D. Compared with unicast, multicast can reduce the burden on the source
Answer: B,C,D
NEW QUESTION # 158
Regarding the multicast distribution tree model SPT, which of the following statement is correct?
(Multiple choice)
- A. Each router on the SPT maintains the (S, G) table entry
- B. Different multicast sources use themselves as roots and independently establish SPTs
- C. Each router on the SPT maintains the (*, G) entry
- D. In the SPT model, the path from the multicast source to any receiver is optimal.
Answer: A,B,D
NEW QUESTION # 159
After executing the displayinterface Ethernet 1/0/1 command on the switch SWA, the output information is as follows:
[SWA] display interface Ethernet 1/0/1
Ethernet1/0/1 current state: UP
PVID: 10
Mdi type: auto
Link delay is 0 (sec)
Port link-type: trunk
VLAN passing: 1 (default vlan), 10
VLAN permitted: 1 (default vlan), 2-4094
Trunk port encapsulation: IEEE 802.1q
Port priority: 0
what can we learn from the above information? (Multiple choice)
- A. When a data frame without a VLAN tag enters port Ethernet1/0/1, it will be tagged with VLAN1.
- B. Port Ethernet1/0/1 is a Trunk port, allowing data frames from any VLAN to pass through.
- C. Port Ethernet1/0/1 is a Trunk port that only allows data from VLAN 1 and VLAN 10 to pass through.
- D. Data with VLAN1 tag will not be stripped when it leaves port Ethernet1/0/1.
Answer: B,D
NEW QUESTION # 160
Regarding the working principle of IGMP-Snooping, which of the following is correct? (Multiple choice)
- A. Layer 2 devices rely on IGMP-sliooping to snoop IGMP messages and maintain multicast address forwarding entries at Layer 2
- B. By listening to IGMPReport messages, IGMP-Snooping adds ports to known multicast groups or creates new multicast forwarding entries
- C. Determine the router end by listening to IGMPQuery messages and IGMP-Snooping
Answer: A,B,C
NEW QUESTION # 161
In the network shown in the figure, the PIMSM protocol is running between RT1, RT2 and RT3, the RP is 1.1.1.1, there is a receiver connected to RT3, and IGMP is enabled on the corresponding interface.
The unicast routing table in RT3 is as follows:
[RT3] display ip routing-table Routing Tables: Public Destinations: 10 Routes:
10Destination/MaskProtoPreCost NextHop Interface
/1.1.1.1/320SPF 10 1562192.168.2.1 so/2/1
127.0.0.0/8 Direct 00127.0.0.1 InLoopo|127.0.0.1/32 Direct 00127.0.0.1 InLoopo|192.168.0.0/30 Direct
00192.168.0.2 S0/2/0/192.168.0.1/32 Direct 00192.168.0.1 S0/2/0/192.168.0.2/32 Direct 00127.0.0.1 InLoopo/192.168.1.0/300 SPF 10 3124 192.168.2.1 so/2/1|192.168.2.0/30 Direct 00192.168.2.2 so/2/1|192.168.2.1/32Direct 00192.168.2.1 so/2/1|192.168.2.2/32Direct 00127.0.0.1 InLoopO Then, when the receiver sends a group join request, which of the following routers have (*, G) entries?
(Multiple choice)
- A. RT1
- B. RT3
- C. RT2
Answer: B,C
NEW QUESTION # 162
Which of the following measures can be taken in the campus network to ensure the security of the network or equipment? (Multiple choice)
- A. Campus network accesses the Internet through NAT translation
- B. Configure BPDU protection on switches in the network
- C. For illegal access to network resources, ACL can be deployed to perform access control
- D. Deploy IPSec VPN to build a private network
Answer: A,B,C,D
NEW QUESTION # 163
In the PIM-DM network shown in the figure, some unicast routing tables of routers RT1 and RT2 are as follows:
<RT1>display ip routing-table Routing Tables: Public
Destination/MaskProtoPreCost NextHop
Interface
1.1.1.0/24xxxxP1-1 C1-110.1.1.1Port1
111.1.0.0/16xxxxP1-2C1-210.1.1.1Port1
<RT2> display ip routing-table
Routing Tables: Public
Destination/MaskProtoPreCost NextHop Interface
1.1.1.0/24XXXX P2-1 C2-111.1.1.1Port2
1.1.1.1/32XXXX P2-2 C2-211.1.1.1Port2
Then, when routers RT1 and RT2 perform Assert, the winner should be? (Multiple choice)
- A. If P1-1= P2-2, C1-1=C2-2, then RT2 wins.
- B. If P1-1= P2-1, C1-1>C2-1, then RT1 wins.
- C. If P1-1= P2-2, C1-1>C2-2, then RT2 wins.
- D. If P1-1<P2-2, C1-1<C2-2, then RT2 wins.
- E. If P1-1= P2-1, C1-1=C2-1, then RT1 wins.
- F. If P1-1<P2-1, C1-1<C2-1, then RT1 wins.
Answer: A,C
NEW QUESTION # 164
To configure the Ethernet 1/0/1 port of the switch SWA as a Hybrid port, with a PVID of VLAN 20, and to send VLAN 20 data frames without tagging, and to send VLAN 10 data frames with tags, which of the following is correct? (Multiple choice)
- A. [SWA] interfaceEthernet 1/0/1
[SWA-Ethernet1/0/1] port link-type hybrid
[SWA-Ethernet1/0/1] port hybrid pvid vlan 20
[SWA-Ethernet1/0/1] port hybrid vlan 10 tagged
[SWA-Ethernet1/0/1] port hybrid vlan 20 untagged
[SWA-Ethernet1/0/1] quit
[SWA] vlan 10
[SWA-vlan10] quit
[SWA] vlan 20 - B. None of the above is correct
- C. [SWA] interface Ethernet 1/0/1
[SWA-Ethernet1/0/1] port link-type hybrid
[SWA-Ethernet1/0/1] port hybrid pvid vlan 20
[SWA-Ethernet1/0/1] port hybrid vlan 10 tagged
[SWA-Ethernet1/0/1] port hybrid vlan 20 untagged - D. [SWA] vlan10
[SWA-vlan 10] quit
[SWA] vlan 20
[SWA-vlan20] quit
[SWA ] interface Ethernet 1/0/1
[SWA-Ethernet1/0/1] port link-type hybrid
[SWA-Ethernet1/0/1] port hybrid pvid vlan 20
[SWA-Ethernet1/0/1] port hybrid vlan 10 tagged
[SWA] vlan10
[SWA-vlan10] quit
[SWA] vlan 20
[SWA-vlan20] quit - E. [SWA] vlan10
[SWA-vlan 10] quit
[SWA] vlan 20
[SWA-vlan20] port Ethernet 1/0/1
[SWA-vlan20] quit
[SWA] interface Ethernet 1/0/1
[SWA-Ethernet1/0/1] port link-type hybrid
[SWA-Ethernet1/0/1] port hybridvlan 10 tagged
Answer: C,E
NEW QUESTION # 165
Which of the following statements about PIMSSM is correct? (Multiple choice)
- A. The multicast message reaches the receiver along the SPT between the multicast source and the receiver
- B. Compared with PIMSM, PIMSSM does not require RP and improves packet forwarding efficiency
- C. PIMSSM can be simply seen as similar to PIMSM. When the host sends a join message, the device sends a (*, G) join message to the multicast source.
- D. To be compatible with earlier versions of IGMP, the receiver in PIMSSM also uses IGMP V2 to send join messages.
Answer: A,B
NEW QUESTION # 166
Which of the following is the multicast destination address of the Hello message in PIM?
- A. 224.0.0.5
- B. 224.0.0.9
- C. 224.0.0.21
- D. 224.0.0.13
Answer: D
NEW QUESTION # 167
What is the UDP port number used by the BFD echo message?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION # 168
In the network shown in the figure, the PIMSM protocol is running between RT1, RT2 and RT3, the RP is 1.1.1.1, there is a receiver connected to RT3, and IGMP is enabled on the corresponding interface.
The unicast routing table in RT3 is as follows:
[RT3] display ip routing-table Routing Tables: Public Destinations: 10 Routes: 10 Destination/MaskProtoPreCost NextHop Interface
1.1.1.1/32 OSPF 10 1562 192.168.0.1 S0/2/0
127.0.0.0/8 Direct 00 127.0.0.1 In Loop 0
127.0.0.1/32 Direct 00 127.0.0.1 In Loop 0
192.168.0.0/30 Direct 00 192.168.0.2 S0/2/0
192.168.0.1/32 Direct 00 192.168.0.1 S0/2/0
192.168.0.2/32 Direct 00127.0.0.1 In Loop 0
192.168.1.0/30 OSPF 10 3 124 192.168.2.1 s0/2/1
192.168.2.0/30 Direct 00 192.168.2.2 so/2/1
192.168.2.1/32 Direct 00 192.168.2.1 so/2/1
192.168.2.2/32 Direct 00 127.0.0.1 In Loop 0
Then, when the receiver sends a group join request, which of the following routers have (*, G) entries?
(Multiple choice)
- A. RT2
- B. RT3
- C. RT1
Answer: B,C
NEW QUESTION # 169
Regarding the configuration of Isolate-user-vlan and Super VLAN, which of the following descriptions is correct? (Multiple choice)
- A. Enabling the local proxy ARP function on the isolate-user-vlan interface allows hosts in different secondary VLANs to communicate with each other.
- B. After the local proxy ARP function is enabled on the Super VLAN interface, hosts in different Sub VLANs can communicate with each other.
- C. After establishing the mapping relationship between Super VLAN and Sub VLAN, the system will prohibit adding/deleting ports to Sub VLAN and deleting VLANs.Operation
- D. After establishing the mapping relationship between Isolate-user-vlan and Secondary VLAN, the system will prohibit the operation of adding/deleting ports to Secondary VLAN and deleting VLAN.
Answer: B,D
NEW QUESTION # 170
Regarding priority mapping and priority trust, which of the following is correct? (Multiple choice)
- A. After the message enters the switch, if you want to enter the queue according to the 802.1P or DSCP value, you must configure the port to trust 802.1P or DSCP.
- B. After the message enters the switch port, it will enter the queue according to the DSCP priority by default
- C. After the message enters the switch port, it will enter the queue according to the 802.1P priority by default.
- D. After the message enters the switch port, it will enter the queue according to the port priority by default.
Answer: A,D
NEW QUESTION # 171
In PIM-DM networking, which of the following is correct about the router sending the Prune message? (Multiple choice)
- A. After the router interface receives the Prune message, it will no longer send messages of the corresponding multicast group on this interface.
- B. The party that fails the Assert will send a Prune to the winning party
- C. After the router RPF interface receives the Prune message, it will no longer receive messages from the corresponding multicast group on this interface.
- D. When the outbound interface list in the router (S, G) table entry is empty, a Prune message is sent to the upstream RPF neighbor.
- E. When the router has no local directly connected multicast receiver, it sends a Prune message to the upstream RPF neighbor.
Answer: B,D
NEW QUESTION # 172
What are the categories of SDN network's processing of protocol messages? (Multiple choice)
- A. Forward to other devices in the network to process protocol messages
- B. Send the protocol message to the cloud platform for processing
- C. Protocol packets are sent to the SDN controller for processing
- D. Send the protocol message to the CPU of this device for processing
Answer: A,C,D
NEW QUESTION # 173
SSH protocol is a secure remote login protocol and is widely used. Which of the following about SSH is correct? (Multiple choice)
- A. SSH uses TCP port 22 to transmit data and port 23 to establish a connection
- B. SSH can also provide a secure transmission channel for FTP
- C. SSH and Secure Shell can use DES authentication to ensure data security
- D. SSH uses additional encryption technology to ensure login security
Answer: B,C,D
NEW QUESTION # 174
In the network shown in the figure, the corresponding configuration is completed on the switch SWA, and the switch SWA and each PC have learned the corresponding ARPPCA. When accessing PCB, ICMP request message is sent, and the destination MAC address of the message is?
- A. FFFF.FFFF.FFFF
- B. MAC-20
- C. MAC-B
- D. MAC-10
Answer: D
NEW QUESTION # 175
When a switch running MSTP and a switch running RSTP work together, which of the following is correct? (Multiple choice)
- A. The MSTP switch will parse the RSTBPDU into an MST BPDU, where IRPC is 0
- B. MSTP switches and RSTP switches can belong to the same MST region
- C. The RSTP switch will treat the MST region as a logical switch, and the bridge ID is the ID of the switch in the MST region that is actually connected to the RSTP switch.
- D. The MSTP switch will regard the RSTP switch as an MSTP domain consisting of a single switch.
Answer: A,D
NEW QUESTION # 176
The router runs the IGMPV2 protocol. The Group Address in the Query message received by the host in its directly connected LAN may be? (Multiple choice)
- A. 0.0.0.0
- B. 224.0.0.1
- C. 255.255.255.255
- D. 224.0.0.2
- E. 225.1.1.1
Answer: A,E
NEW QUESTION # 177
SNMPv1 uses community names as security authentication between NMS and Agent. Which of the following suggestions should administrators follow to manage the network when using the SNMP protocol? (Multiple choice)
- A. Minimize the number of hosts that can access the Agent via SNMP
- B. Avoid using SNMPv1
- C. If you must use SNMPv1, you must modify the SNMP write community
- D. For ease of management, you can keep the default read community unchanged
Answer: B,C
NEW QUESTION # 178
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